Turn into reported speech (using Past Tense):
1. Why didn't you come here?
2. Were you busy yesterday or the day before?
3. Shall we wait till the others come?
4. Shall I sent it to you by post?
5. How do you know that?
6. Where can I go for it?
7. Did Bill give you that ring?
8. Have the children put away their toys?
9. How did you do that?
10. Where are you going?
11. She will be here in half an hour if she isn't late.
12. She is going to Paris tomorrow.